| in the dark | 7 | temporal |
| via suppression of ghrelin release | 3 | cause |
| at night | 3 | temporal |
| melatonin → be → increased | 6 |
| melatonin → cause → increase | 4 |
| melatonin → be produced at → increased levels | 3 |
| negative | neutral | positive |
| 0.244 | 0.592 | 0.164 |
| Raw frequency | 13 |
| Normalized frequency | 0.255 |
| Modifier score | 0.800 |
| Perplexity | 59.282 |